Laser Surface Cleaning
Laser surface cleaning is a non-contact thermal process that removes organic contaminants or oxides with focused laser radiation. It avoids chemical pickling agents.
Physicochemical Mechanism of Action
Laser surface cleaning uses the energy of a focused laser beam to remove organic contaminants or oxides on the metal surface. The laser beam heats the area so strongly that the contaminants are gasified and lifted off.
Metallurgical Relevance & Welding Risks
This cleaning method is especially useful for metals with fine surface structure or high cleanliness requirements. It prevents the formation of porosity and improves weld quality. However, too high laser energy can damage the material or alter the surface, which can lead to hardness problems.
Workshop Practice & Instructions
To successfully use laser surface cleaning, it is important to precisely control the laser energy and the duration of exposure. High energy (approx. 10-20 J/cm²) for a short time (approx. 50 ms) is typical. Make sure the laser unit is correctly calibrated and set for the specific materials. Use protective clothing and respiratory protection, as the process can generate fine dust.